The image you provided shows a trapezoid $ABCD$ with the following information:

• $AB = 8$
• $DC = 17$
• $SB \perp (ABC)$, indicating a right angle between line $SB$ and line $ABC$.

To find the area of trapezoid $ABCD$, we need to know the height, which seems to be represented by $SB$. To calculate the area of a trapezoid, the formula is:

$S_{ABCD} = \frac{1}{2} \times (AB + DC) \times h$

Where:

• $AB$ is one of the parallel sides
• $DC$ is the other parallel side
• $h$ is the height, which is the perpendicular distance between the parallel sides.

We need the height of the trapezoid. Could you provide that value or any additional information needed to find it?